Weight & Balance

Question 1

What’s the definition of Basic Operating Weight (BOW)?

Answer 1

It’s the weight of the aircraft, including crew, ready for flight.

Question 2

If ZFW cg is within limits, can the aircraft get out of cg after fueling?

Answer 2

No

Question 3

How are moments calculated?

Answer 3

Moment equals the weight of an item multiplied by its arm: the units are inch-pounds.

Question 4

What is center of gravity?

Answer 4

Point about which an aircraft would balance if it were possible to suspend it at that point.

Question 5

What is Mean Aerodynamic Chord (MAC)?

Answer 5

The average distance from the leading edge to the trailing edge of the wing

Question 6

What’s the significance of the takeoff trim setting?

Answer 6

It’s for V2 (takeoff safety speed): it minimizes control forces for an engine failure on takeoff.